Kuruluş Osman (2019) : 5x9

Osman Bey rescues Yakup Bey from Karacelasun, emphasizing his commitment to Islam. Karacelasun seeks revenge with a new plan against Osman Bey, who assigns Orhan Bey to thwart him. Gonca Hatun's condition worsens, prompting Alaeddin and Mehmet to search for a cure. They encounter Crusader soldiers, and Yakup Bey, aware of Gonca's condition, vows to hold the Mongols and the Kayı accountable if she suffers. Alaeddin Bey struggles to find a cure for the poisoned victims in Uç Pazar, growing increasingly desperate. Cerkutay, in anguish, holds his poisoned child, with Ülgen Hatun also deeply affected. Yakup Bey manipulates Cerkutay against Osman Bey, blaming him for their misfortunes. Vasilis, revealed as a traitor, takes refuge with Yakup Bey, accusing Osman Bey of deceit. Yakup Bey, enraged, plans to hold Osman Bey accountable, escalating the tension between them.